Add the c++ code part of bindings2/

sky/engine/tonic/dart_builtin.cc

 // Copyright 2015 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "sky/engine/config.h"
 #include "sky/engine/tonic/dart_builtin.h"
 
 #include <stdlib.h>
 #include <string.h>
 
 #include "base/logging.h"
+#include "sky/engine/tonic/dart_converter.h"
 
 namespace blink {
 
 DartBuiltin::DartBuiltin(const Natives* natives, size_t count)
     : natives_(natives), count_(count) {
 }
 
 DartBuiltin::~DartBuiltin() {
 }
 
@@ skipping 18 matching lines @@
 
 const uint8_t* DartBuiltin::Symbolizer(Dart_NativeFunction native_function) const {
   for (size_t i = 0; i < count_; ++i) {
     const Natives& entry = natives_[i];
     if (entry.function == native_function)
       return reinterpret_cast<const uint8_t*>(entry.name);
   }
   return nullptr;
 }
 
+Dart_Handle DartBuiltin::LookupLibrary(const char* name) {
+    Dart_Handle library = Dart_LookupLibrary(ToDart(name));
+    DCHECK(!Dart_IsError(library));
+    return library;
+}
+
 }  // namespace blink